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# assignment no 3 cs614 fall 2017

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Assignment No. 3 Semester Fall 2016 Data Warehousing– CS614 Total Marks: 10 Due Date: 18-01-2017 Objective: This assignment has been designed to develop your understanding of parallelism in a Data warehousing environment. Instructions: Please read the following instructions carefully before solving & submitting the assignment: 1. The assignment will not be accepted after due date. 2. Zero marks will be awarded to the assignment that does not open or the file is corrupt. 3. The assignment file must be an MS Word (.doc) file format; Assignment will not be accepted in any other format. 4. Zero marks will be awarded to the assignment if copied (from other student or copied from handouts or internet). 5. Zero marks will be awarded to the assignment if the Student ID is not mentioned in the assignment file. For any query about the assignment, contact only at CS614@vu.edu.pk Please do not post queries related to assignment on MDB.
Question 1: [5 Marks]
Use the Amdahl’s Law (mentioned below) to prove that the speed up does not remain the same, as the ratio of
sequential code and number of processors (on which this code is executed) is doubled.
Initial fraction of code that can be executed sequentially = 10%
Initial number of processors = 100
Note: Assumes zero (0) overhead and “perfect” parallelism.
You have to compare both the results (initial result and result after doubling the given values)
Question 2: [5 Marks]
Suppose, we are performing 20 tasks sequentially using a machine each task taking 5 seconds. Now we are
How much speed up, we will get after applying the pipelining concept.
Note: You have to perform and show the mathematical calculations in the solution.
Note: Deadline for Assignment submission is 18th January, 2017.
Wish you best of Luck!

# CS614 Data Warehousing Assignment No. 3 Solution Fall 2016 Due Date Jan 16, 2017

CS614 Data Warehousing Assignment No. 3 Solution Fall 2016 Due Date Jan 16, 2017

Assignment No. 3

Semester Fall 2016

Total Marks: 10

Due Date: 18-01-2017

Data Warehousing– CS614

Objective:

This assignment has been designed to develop your understanding of parallelism in a Data warehousing environment.

Instructions:

Please read the following instructions carefully before solving & submitting the  assignment:

1. 1.                   The assignment will not be accepted after due date.
2. 2.                   Zero marks will be awarded to the assignment that does not open or the file is corrupt.
3. 3.                   The assignment file must be an MS Word (.doc) file format; Assignment will not be accepted in any other

format.

1. 4.                   Zero marks will be awarded to the assignment if copied (from other student or copied from handouts or

internet).

1. 5.                   Zero marks will be awarded to the assignment if the Student ID is not mentioned in the assignment file.

For any query about the assignment, contact only at            CS614@vu.edu.pk

Please do not post queries related to assignment on MDB.

Question 1:                                                                                                                                         [5 Marks]

Use the Amdahl’s Law (mentioned below) to prove that the speed up does not remain the same, as the ratio of

sequential code and number of processors (on which this code is executed) is doubled.

Initial fraction of code that can be executed sequentially = 10%

Initial number of processors = 100

Note: Assumes zero (0) overhead and “perfect” parallelism.

You have to compare both the results (initial result and result after doubling the given values)

Question 2:                                                                                                                                        [5 Marks]

Suppose, we are performing 20 tasks     sequentially using a machine each task taking 5 seconds.  Now we are

How much speed up, we will get after applying the pipelining concept.

Note: You have to perform and show the mathematical calculations in the solution.

Note: Deadline for Assignment submission is 18th  January, 2017.

Wish you best of Luck!

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question no 2 ka answer lecture no 25 k topic pipelining: speed-up calculation mae hai, topic ko read karain and easily question ko solve karain.

page no 214

question no 1 ka solution lecture no 24 k topic speed-up & Amdahl's Law mae hai page no 204

but ye question solve nhe ho raha agar kisi ko is question ki smj a gai hai to kindly mujy b samja dy.

I add the solution. Now you just give the conclusion.

Attachments:

Q no 1 ma apny 10% and 20% lena ha jistrha ap ny kia ha asy tu apka ye prove ni hrha

Attachments:

thanks!

a gai smj thanks!

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